Actually, we followed about half of these guys and offered several, at least 7 I think.
The fact us we weren't going to give out truly committable offers to ANY bigs as long as we thought we had a good chance at the two 5-stars Diallo and Swanigan.
If we had signed, say, Pardon or Dime and backed away from Swanigan or Diallo, the board would have exploded. You could argue, as I have, that we should basically ignore 5-stars and sign realistic targets earlier, but we put a lot of effort and resources into Diallo and Swanigan and when most of the guys you list committed, we were still in decent shape with the 5-stars.
We were not gonna take a PF in '15. We have 4 of them now in the soph and freshman class. We have our sights set on some better guards/wings in the '16 class. Will we get them? Who knows?
Likewise, until Newkirk blew up, who thought we needed to follow guards after signing Damon Wilson?
Listing a bunch of guys who are irrelevant is, well, irrelevant